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WO2012080194A1 - Vitre cintrée - Google Patents

Vitre cintrée Download PDF

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Publication number
WO2012080194A1
WO2012080194A1 PCT/EP2011/072492 EP2011072492W WO2012080194A1 WO 2012080194 A1 WO2012080194 A1 WO 2012080194A1 EP 2011072492 W EP2011072492 W EP 2011072492W WO 2012080194 A1 WO2012080194 A1 WO 2012080194A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
curvature
radii
area
tangent
Prior art date
Application number
PCT/EP2011/072492
Other languages
German (de)
English (en)
Inventor
Benno Dunkmann
Jean-Marie Le Ny
Michael Balduin
Original Assignee
Saint-Gobain Glass France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint-Gobain Glass France filed Critical Saint-Gobain Glass France
Priority to JP2013542573A priority Critical patent/JP5819436B2/ja
Priority to PL11794744T priority patent/PL2651676T3/pl
Priority to US13/990,391 priority patent/US9656537B2/en
Priority to ES11794744.0T priority patent/ES2664502T3/es
Priority to MX2013006688A priority patent/MX344209B/es
Priority to CN201180059847.1A priority patent/CN103249581B/zh
Priority to BR112013013260-4A priority patent/BR112013013260B1/pt
Priority to EA201390871A priority patent/EA027316B1/ru
Priority to EP11794744.0A priority patent/EP2651676B1/fr
Priority to KR1020137018211A priority patent/KR101579355B1/ko
Publication of WO2012080194A1 publication Critical patent/WO2012080194A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/008—Windows; Windscreens; Accessories therefor of special shape, e.g. beveled edges, holes for attachment, bent windows, peculiar curvatures such as when being integrally formed with roof, door, etc.
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
    • C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/20—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames
    • C03B35/202—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames by supporting frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material

Definitions

  • the invention relates to a curved disk and a method for its production.
  • panes of glass are placed in a bending ring and heated.
  • the glass sheet is bent along the geometry given by the bending ring by means of gravity acting on the heated glass sheet.
  • the heated glass is bent by means of negative pressure and a suitable frame into the appropriate shape.
  • EP 0 677 491 A2 discloses a method for bending and annealing glass sheets.
  • the glass sheets are heated to their softening temperature, pressed in a device between two complementary molds and then into transferred a transport ring.
  • the discs are then tempered in the transport ring and cooled.
  • EP 1 371 616 B1 discloses a device for bending and tempering glass sheets.
  • the apparatus comprises, inter alia, successive mold carriers, preheating sections for heating glass sheets to bending temperature, a gravity-based prebending section, a bending section with a mold and a cooling section.
  • EP 1 358 131 B1 discloses a method for the pairwise bending of glass sheets.
  • the pair of glass panes is pre-bent in a horizontal position on a frame bending mold by gravity bending. Subsequently, the pre-bent pair of glass sheets is bent with a full-surface bending mold.
  • US 2008/0134722 A1 discloses a method and apparatus for bending superimposed disks.
  • the discs are lifted over a suction mold and pressed over an opposite mold and bent according to the geometry.
  • the object of the present invention is to provide a disk which has complex surface and marginal end bends and can be realized in a single manufacturing process.
  • the vehicle glazing according to the invention comprises at least one disc with a disc height of 900 mm to 1650 mm viewed from the vehicle floor.
  • the pane can be designed both as single glazing and as composite glazing.
  • the pane has edges in the area of an upper roof edge, an A-rail edge and a body edge.
  • the disk comprises two imaginary (virtual) rectangular surfaces A and B.
  • the surface A has an extension of 800 mm * 800 mm and the surface B has an extension of 1000 mm * 700 mm.
  • the overlapping imaginary surfaces A and B are bounded centrally from the lowest point of contact of the disc with the body edge horizontal to the ground.
  • the term "horizontal to the ground, centered" refers to the condition of the installed disk in the vehicle.
  • the lowermost contact point and the point of the top edge of the roof closest to the contact point form an imaginary (virtual) Y0 axis.
  • the two most objectionable points relative to the width of the disc form an imaginary (virtual) Z0 axis.
  • the complexity of the disc according to the invention is described by the radii of curvature of the disc within the areas A and B.
  • the disc has relative to the installed state in a vehicle body vertical radii of curvature of 18 m to 2 m and horizontal radii of curvature of 10 m to 1, 0 m in the region of the surface A.
  • the disc also has relative to the installed state in a vehicle body vertical radii of curvature in the range of 18 m to 3 m and horizontal radii of curvature of 10 m to 0.8 m in the area of the surface B.
  • the curvature of the disk along the imaginary Y0 axis at the edge of the roof corresponds to a first tangent.
  • This first tangent forms an angle ⁇ (Alfa) of -10 ° to + 15 ° to the (car body) roof surface.
  • the Z0 corresponds to touching curvature of the disk at the boundary of the disk to the A-rail edge of a second tangent.
  • This second tangent forms an angle ⁇ (beta) of 28 ° to 70 ° to imaginary (virtual) Z0 axis.
  • the A-Holmkante refers to the edge of the disc which faces the A-spar.
  • the roof top edge refers to the edge of the disc which faces the roof.
  • the disc has preferably vertical radii of curvature of 10 m to 3 m and horizontal radii of curvature of 8 m to 2.0 m in the area of the area A, as well as vertical radii of curvature in the range of 10 m to 4 m and horizontal radii of curvature of 8 m to 1, 0 m in the area of area B on.
  • the angle ⁇ (Alfa) of the first tangent to the roof surface is preferably from -5 ° to 10 ° and / or the angle ⁇ (beta) of the second tangent to imaginary (virtual) Z0 axis is preferably from 40 ° to 65 °.
  • the disc height is preferably 1000 mm to 1250 mm.
  • the vehicle glazing according to the invention comprises at least one pane with a pane height of 1 100 mm to 1850 mm viewed from the vehicle floor.
  • the pane can be designed both as single glazing and as composite glazing.
  • the disc has edges in the area of an upper roof edge, an A-rail edge and a body edge.
  • the disk comprises two imaginary (virtual) rectangular surfaces A and B.
  • the surface A has an extension of 800 mm * 800 mm and the surface B has an extension of 1000 mm * 700 mm.
  • the overlapping imaginary surfaces A and B are bounded centrally from the lowest point of contact of the disc with the body edge horizontal to the ground.
  • the term "horizontal to the floor, centered" refers to the condition of the built-in window in the vehicle, and at the same time the lowest point of contact and the point of the top edge of the roof closest to the point of contact form an imaginary (virtual) Y0 axis, the two in relation to the width
  • the complexity of the disc according to the invention is described by the radii of curvature of the disc within the areas A and B.
  • the disc has vertical radii of curvature of 18 m to 3 relative to the installed state in a vehicle body m and horizontal radii of curvature of 10 m to 3 m in the area of the surface A.
  • the disc also has vertical radii of curvature in the range of 18 m to 4 m and horizontal radii of curvature of 10 m to 2 m in the region of the surface relative to the installed state in a vehicle body
  • the curvature of the disk corresponds to d he thought of Y0 - Axis at the border to the roof top of a first tangent.
  • This first tangent forms an angle ⁇ (Alfa) of -20 ° to + 15 ° to the (body) roof surface.
  • the Z0 corresponds to touching curvature of the disk at the A-rail edge of a second tangent.
  • This second tangent forms an angle ⁇ (beta) of 3 ° to 30 ° to imaginary (virtual) Z0 axis.
  • the A-Holmkante refers to the edge of the disc which faces the A-spar.
  • the roof top edge refers to the edge of the disc which faces the roof.
  • the disc has preferably vertical radii of curvature of 15 m to 4 m and horizontal radii of curvature of 8 m to 4.0 m in the area A, and vertical radii of curvature in the range of 15 m to 5 m and horizontal radii of curvature of 8 m to 3 m in Area of area B on.
  • the angle ⁇ (Alfa) of the first tangent to the roof surface is preferably from -10 ° to 5 °, and / or the angle ⁇ (beta) of the second tangent to imaginary (virtual) Z0 axis is preferably from 5 ° to 20 °.
  • the disc height is preferably 1250 mm to 1650 mm.
  • the vehicle glazing according to the invention comprises at least one pane with a pane height of 1 100 mm to 1850 mm considered from the vehicle floor.
  • the pane can be designed both as single glazing and as composite glazing.
  • the disc has edges in the area of an upper roof edge, an A-rail edge and a body edge.
  • the disk comprises two imaginary (virtual) rectangular surfaces A and B.
  • the surface A has an extension of 800 mm * 800 mm and the surface B has an extension of 1000 mm * 700 mm.
  • the overlapping imaginary surfaces A and B are bounded centrally from the lowest point of contact of the disc with the body edge horizontal to the ground.
  • the term "horizontal to the floor, centered" refers to the condition of the built-in window in the vehicle, and at the same time the lowest point of contact and the point of the top edge of the roof closest to the point of contact form an imaginary (virtual) Y0 axis, the two in relation to the width
  • the complexity of the disc according to the invention is described by the radii of curvature of the disc within the areas A and B.
  • the disc has vertical radii of curvature of 18 m to 3 relative to the installed state in a vehicle body m and horizontal radii of curvature of 10 m to 3 m in the area of the surface A.
  • the disc also has vertical radii of curvature in the range of 18 m to 4 m and horizontal radii of curvature of 10 m to 2 m in the region of the surface relative to the installed state in a vehicle body
  • the curvature of the disk corresponds to d he thought of Y0 - Axis at the border to the roof top of a first tangent.
  • This first tangent forms an angle ⁇ (Alfa) of -20 ° to + 15 ° to the (body) roof surface.
  • the Z0 corresponds to touching curvature of the disk at the A-rail edge of a second tangent.
  • This second tangent forms an angle ⁇ (beta) of 3 ° to 30 ° to imaginary (virtual) Z0 axis.
  • the A-rail edge denotes the edge of the disc which faces the A-spar.
  • the roof top edge refers to the edge of the disc which faces the roof.
  • the disc has preferably vertical radii of curvature of 15 m to 4 m and horizontal radii of curvature of 8 m to 4.0 m in the area A, and vertical radii of curvature in the range of 15 m to 5 m and horizontal radii of curvature of 8 m to 3 m in Area of area B on.
  • the angle ⁇ (Alfa) of the first tangent to the roof surface is preferably from -10 ° to 5 °, and / or the angle ⁇ (beta) of the second tangent to imaginary (virtual) Z0 axis is preferably from 5 ° to 20 °.
  • the disc height is preferably 1250 mm to 1650 mm.
  • the inventive method for bending discs allows the combination of edge and surface bending. In this way, the realization of the geometries and radii of curvature of the disc according to the invention and the two alternative embodiments of the disc according to the invention is possible.
  • the final geometry is dependent on the vehicle geometry (body) and can be calculated and simulated in a conventional manner via CAD programs by a specialist.
  • the method comprises a first step, wherein at least one disc, preferably a first disc and a second disc, are inserted into a pre-bending ring on a mobile bending ring holder.
  • the method is suitable for both a disc and for the pairwise bending of discs.
  • the Vorbiegering preferably has a mean Randendbiegung of 5% to 50%.
  • the mobile jump ring holder then moves into an oven and the slices are heated in the Vorbiegering via a heater at least to the softening temperature of the glass, preferably 550 ° C to 800 ° C.
  • the softening temperature depends on the composition of the glass.
  • the discs inserted in the pre-bender ring are pre-bent by gravity to between 5% and 50% of the local edge deflection.
  • edge bending encompasses the mean (final) bending in the final, finished state of at least one section of the edge of the pane or bending edge with an extension or length of at least 30% of the total bending ring or edge of the pane next step over a Lifted suction device and bent over the bend obtained in the pre-bending ring.
  • the disks are preferably bent to 102% to 130% of the edge end bend.
  • the bending takes place via a counter skeleton located in the suction device.
  • the counter skeleton preferably has the shape of a ring with a protruding curved contact surface.
  • the aspiration device contains, in addition to the counter skeleton, a cover surrounding the counter skeleton with an air guide plate.
  • the air bladder is located adjacent to the raised disc and is designed so that the disc has a distance of 3 mm to 50 mm to the air baffle during the bending at the contact surface of the counter skeleton. This distance allows a continuous suction of air in the space between the disc and the air baffle. The sucked air creates a negative pressure for fixing the disc to the contact surface.
  • the discs are bent by the suction process.
  • the contact region of the molded part in particular the contact surface with the pane, is preferably lined with a flexible or soft material.
  • This material preferably comprises refractory fibers of glass, metal or ceramic and prevents damage such as scratches on the discs.
  • a description of the operation and structure of the aspirator for lifting the disc can also be found in US 2008/0134722 A1, [0036] and [0038] to [0040] and claim 1 a).
  • the discs are then placed on the suction device in a Endbiegering on the mobile Biegeringhalter.
  • the Endbiegering preferably has at least a 30% larger average Randendbiegung than the Vorbiegering.
  • the discarding can take place, for example, by releasing the suction pressure via a pressure reduction in the suction device.
  • the Vorbiegering and Endbiegering are each bent according to the intended disc geometry. The scope and the opening angle of the bending ring depend on the geometry of the disc to be bent.
  • the Vorbiegering and the Endbiegering are preferably arranged on the same mobile Bieging holder and can be converted, for example, by removing a pin or holder from Vorbiegering in the Endbiegering.
  • the term "change" in the context of the invention includes both the change in the shape (geometry) of the bending ring from Vorbiegering to Endbiegering, as well as stripping of the Vorbiegerings and "getting rid” of a arranged under the Vorbiegering Endbiegerings.
  • the disc deposited on the end bender ring is pre-bent by heat radiation in the surface. For this purpose, a temperature gradient is set above the disk and through the different heating allows a different surface deflection.
  • the heating device preferably comprises an arrangement of individual separately controllable heating tiles. Due to the different heat radiation of the tiles, different temperature ranges can be realized on the panes. Subsequently, the discs are raised via a second suction device.
  • the second suction device preferably has the same structure as the first suction device.
  • the discs are pressed against a counter-mold and preferably bent in the surface of the disc.
  • the structure of this counterform is described in US2008 / 0134722 A1 in [0037] and FIG.
  • the counterform acts as a negative of the surface deflection of the disc and bends the disc in the finalêtnendgeometrie. Subsequently, the discs are placed on the Endbiegering and cooled.
  • the panes preferably contain glass, particularly preferably flat glass (float glass), quartz glass, borosilicate glass and / or soda-lime glass.
  • the slices are preferably lifted above the aspirator and bent to 100% to 130%, preferably to 105% to 120% of the average global edge end bend.
  • the term "global marginal bend” refers to a percent uniform bending of the entire disc
  • the discs are preferably formed on a bender ring (counter-skeleton) in the aspirator to have a marginal bend that is in shape or dimension beyond the amount of the end edge bend ,
  • the disk is preferably bent over the suction device with a locally different edge end bend.
  • the term "local edge bend” refers to a percent uneven (edge-to-edge) bend of the entire disk.
  • the disk is preferably bent in the first and / or second suction device locally via an air flow or a lower bending ring.
  • the term "local" refers to individual regions of the disc, which are adjusted via an air flow, preferably from a nozzle, in a limited range, an additional bend. Alternatively, the described local bending can also be done via a bending ring applied from below.
  • the disks are preferably heated over a temperature gradient on the glass surface with a maximum of 0.05 K / mm to 0.5 K / mm, preferably 0, 1 K / mm to 0.2 K / mm.
  • the adjustment of the temperature gradient preferably takes place via differently controlled (ie different amounts of radiated heat) and heating devices placed above or below the panes.
  • the disks are preferably heated to a temperature of 500 ° C to 750 ° C, more preferably 580 ° C to 650 ° C.
  • the discs are preferably pre-bent by gravity in the pre-bender ring to 10% to 30% of the averaged final deflection.
  • the suction device preferably builds up an intake pressure of 1 kg / m 2 to 100 kg / m 2 . This suction pressure is sufficient to securely fix the discs to the aspirator and bend over the opposing skeleton.
  • the invention further comprises a disk bent with the method according to the invention, in particular a disk pair.
  • the invention further includes the use of the disc according to the invention as a vehicle windshield.
  • the functional areas of the surfaces A and B serve in all embodiments of the invention in the field of transmission optics, the wiperability by windshield wipers and the suitability as an area for head-up displays (HUD).
  • the radii of curvature according to the invention allow optimum properties of the features mentioned.
  • transitions according to the invention in all embodiments of the invention in the roof area allow a reduction of air resistance through edge minimization.
  • the transitions according to the invention in the region of the A-bars reduce the noise development.
  • FIG. 2 shows a cross-section of the suction device
  • FIG. 3 shows a flow chart of the method according to the invention
  • FIG. 4 shows a schematic structure of a pane according to the invention
  • FIG. 5 shows a schematic structure of a pane according to the invention with marked A and B fields
  • Figure 6 shows the transition of a disc according to the invention in the roof area and Figure 7 is a plan view of the disc according to the invention.
  • FIG. 1 shows a cross-section of a furnace according to the invention for producing a pane according to the invention.
  • the oven comprises heating devices (6) and inside and outside of the oven via a transport device (10) movable Bieging holder (3) each having a Vorbiegering (7a).
  • a preheating area (A) the panes (1, 2) are heated to the softening temperature of the respective glass.
  • the preheating area (A) is followed in the prebending area (B) by a first, vertically height-adjustable, preferably convexly curved suction device (5).
  • the suction device (5) allows the disks (1, 2) to be received in the bending ring (3), the sheets (1, 2) to be pre-bent and the pre-bent disks (1, 2) to be laid on an end-bending ring (7b).
  • the Vorbiegering (7a) and the Endbiegering (7b) can be, for example, by removing a pin or a holder from Vorbiegering (7a) in the Endbiegering (7b) change over.
  • To the Intake device (5) in Vorbiege Scheme (B) is followed by an intermediate region (C) for heating the discs (1, 2) deposited on the Endbiegering (7b).
  • Adjacent to the intermediate region (C) are the Endbiege Scheme (D) with a second vertically adjustable, convex curved suction device (15).
  • the second vertically adjustable, convexly curved suction device (15) is horizontally movable and allows lifting and bending of the discs (1, 2).
  • the second vertically adjustable, convex curved suction device (15) corresponds in its basic structure of the suction device (5).
  • the basic structure of the suction device (5, 15) is also described in US2008 / 0134722 A1.
  • the discs (1, 2) are pressed between the convex curved suction device (15) and the concave curved counter-mold (16).
  • third suction device (17) may be attached.
  • the third aspirator (17) can receive discs while discs are bent in the second aspirator.
  • the discs (1, 2) can be placed on the Endbiegering (7b) again on the convex curved suction device (9).
  • a cooling area (D) forms the final part of the furnace according to the invention.
  • the preheating area (A), the prebending area (B), the intermediate area (C), the final bending area (D) and the cooling area (D) are arranged in succession.
  • FIG. 2 shows a cross section of the suction device (5).
  • the suction device (5) contains a counter-skeleton (8) and a cover (9) surrounding the counter-skeleton (8).
  • the counter-skeleton (8) can be globally or locally over-arched with respect to the end-bending ring (7b), not shown.
  • the counter-skeleton also acts as a "negative mold” to the end bender ring (7b), not shown.An air stream (13) is sucked into the suction device (5) via the edge zone (14) between the counter-skeleton (8) and cover (9)
  • the contact surface (12) of the counter-skeleton (8) with the second disc (2) is preferably with a flexible or soft material such as refractory fibers made of glass, metal or ceramic lined.
  • FIG. 3 shows a flow chart of the method according to the invention.
  • the bending ring (3) is then moved into an oven.
  • the panes (1, 2) are heated via a heating device (6) made of radiant heaters to the softening temperature of the panes (1, 2), about 580 ° C to 650 ° C.
  • the discs (1, 2) located in the pre-bending ring (7a) are pre-bent by gravity to 5% to 40% of the averaged final deflection to be achieved.
  • the heating device preferably comprises an arrangement of individual separately controllable heating tiles.
  • the different temperature ranges allow a gradual heating of the disk surface.
  • the discs (1, 2) are then lifted over a preferably convex suction device (5) and bent to 102% to 130% of the averaged final deflection.
  • the discs (1, 2) are placed over the convex suction device (5) on the Endbiegering (7b) on the mobile bending ring (3).
  • the Vorbiegering (7a) and the Endbiegering (7b) are each bent according to the intended disc geometry.
  • the Vorbiegering (7a) and the Endbiegering (7b) are preferably arranged on the same mobile bending ring (3) and can be converted by the removal of a pin from Vorbiegering (7a) in the Endbiegering (7b).
  • the panes are heated in the intermediate area (C).
  • the discs (1, 2) deposited on the end bender ring (7b) are pre-bent by heat radiation in the surface.
  • a temperature gradient is set above the discs (1, 2) in the intermediate region (C), and a different surface deflection is made possible by the different heating.
  • the heating device (6) preferably comprises an arrangement of individual separately controllable heating tiles. Due to the different heat radiation of the tiles, different temperature ranges can be realized on the panes (1, 2).
  • FIG. 4 shows a pane (1, 2) according to the invention in an imaginary Y, Z grid.
  • the numbers given on the axes indicate the lengths or dimensions of the inventive disk in mm.
  • the imaginary (virtual) Y0 axis runs along the body edge (1f) from the lowest contact point (1a) of the disc (1) at the shortest distance to the roof top edge (1c).
  • the ZO axis extends between the furthest spaced points along the disk width (Y axis).
  • the lines drawn on the disc (1) indicate by way of example the corresponding radii of curvature.
  • FIG. 5 shows a pane according to the invention in an imaginary Y, Z grid.
  • the edges of the surface A and the surface B aligned with the body edge (1f) lie one above the other, centrally in the lowest point of contact (1a) and parallel to the ground.
  • the term "floor” refers to the floor surfaces parallel to the vehicle glazing installed in the vehicle according to the invention .Within the imaginary areas A and B, there are high requirements with regard to the transmission in the main field of vision areas of the area A and area B possible.
  • FIG. 6 shows a side view of the transition of a pane (1) according to the invention into the roof area of a motor vehicle.
  • the first tangent (1b) is shown as a continuation of the disc curvature.
  • the broken line Y0 axis runs at the shortest distance from the roof top edge (1c) to the lowest contact point (1a).
  • On the side of the disc goes on the side edges (1 e) in the A-spar of the body over.
  • the height (1g) of the disc (1) is determined in an erected form.
  • FIG. 7 shows a plan view of the pane (1) according to the invention along the ZO axis.
  • the extension of the ZO axis forms, together with the second tangent (1d) on the side edge (1e) of the disc, the angle ⁇ (beta).
  • the second tangent forms the lateral continuation of the disc curvature of the disc (1) according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Body Structure For Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Window Of Vehicle (AREA)

Abstract

L'invention concerne un vitrage de véhicule comprenant au moins une vitre (1) d'une hauteur de 900 mm à 1650 mm, avec une arête supérieure de toit (1c), une arête de montant A (1e), une arête de carrosserie (1f) ainsi que deux surfaces rectangulaires A et B, la surface A présentant une superficie de 800 mm * 800 mm et la surface B présentant une superficie de 1000 mm * 700 mm et la surface A et la surface B étant limitées centralement par le point de contact le plus bas (1a) de la vitre (1) avec l'arête de carrosserie (1f) horizontalement par rapport au sol, et le point de contact le plus bas (1a) et le point de l'arête supérieure de toit (1c) se trouvant à la plus courte distance du point de contact (1a) formant un axe Y0 et les deux points les plus espacés par rapport à la largeur de la vitre (1) formant un axe Z0, la vitre (1) a. présentant des rayons de courbure verticaux de 18 m à 2 m et des rayons de courbure horizontaux de 10 m à 1,5 m dans la région de la surface a et b. des rayons de courbure verticaux de l'ordre de 18 m à 3 m et des rayons de courbure horizontaux de 10 m à 0,8 m dans la région de la surface B, et c. la courbure de la vitre (1) le long de Y0 au niveau de la limite avec l'arête supérieure de toit (1c) correspondant à une première tangente (1b), la première tangente formant un angle α (Alpha) de -10° à 15° avec la surface du toit (19), la courbure de la vitre (1) au niveau de la limite de la vitre (1) avec l'arête de montant A (1e) correspondant à une deuxième tangente (1d), et la deuxième tangente formant un angle β (Bêta) de 28° à 70° par rapport à Z0.
PCT/EP2011/072492 2010-12-13 2011-12-12 Vitre cintrée WO2012080194A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2013542573A JP5819436B2 (ja) 2010-12-13 2011-12-12 湾曲窓板
PL11794744T PL2651676T3 (pl) 2010-12-13 2011-12-12 Szyba gięta
US13/990,391 US9656537B2 (en) 2010-12-13 2011-12-12 Bent windowpane
ES11794744.0T ES2664502T3 (es) 2010-12-13 2011-12-12 Cristal curvado
MX2013006688A MX344209B (es) 2010-12-13 2011-12-12 Panel doblado.
CN201180059847.1A CN103249581B (zh) 2010-12-13 2011-12-12 一种汽车玻璃及用于弯曲玻璃片的方法
BR112013013260-4A BR112013013260B1 (pt) 2010-12-13 2011-12-12 Vidraça de veículo motorizado
EA201390871A EA027316B1 (ru) 2010-12-13 2011-12-12 Остекление транспортного средства (варианты)
EP11794744.0A EP2651676B1 (fr) 2010-12-13 2011-12-12 Vitre cintrée
KR1020137018211A KR101579355B1 (ko) 2010-12-13 2012-01-07 벤딩된 창유리

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10194800 2010-12-13
EP10194800.8 2010-12-13

Publications (1)

Publication Number Publication Date
WO2012080194A1 true WO2012080194A1 (fr) 2012-06-21

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PCT/EP2011/072492 WO2012080194A1 (fr) 2010-12-13 2011-12-12 Vitre cintrée

Country Status (12)

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US (1) US9656537B2 (fr)
EP (1) EP2651676B1 (fr)
JP (1) JP5819436B2 (fr)
KR (1) KR101579355B1 (fr)
CN (1) CN103249581B (fr)
BR (1) BR112013013260B1 (fr)
EA (1) EA027316B1 (fr)
ES (1) ES2664502T3 (fr)
MX (1) MX344209B (fr)
PL (1) PL2651676T3 (fr)
PT (1) PT2651676T (fr)
WO (1) WO2012080194A1 (fr)

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Also Published As

Publication number Publication date
JP5819436B2 (ja) 2015-11-24
ES2664502T3 (es) 2018-04-19
US20140011000A1 (en) 2014-01-09
BR112013013260A2 (pt) 2016-09-13
US9656537B2 (en) 2017-05-23
KR101579355B1 (ko) 2015-12-21
EP2651676A1 (fr) 2013-10-23
EP2651676B1 (fr) 2018-01-24
EA027316B1 (ru) 2017-07-31
MX2013006688A (es) 2014-01-09
CN103249581A (zh) 2013-08-14
EA201390871A1 (ru) 2013-09-30
MX344209B (es) 2016-12-08
PL2651676T3 (pl) 2018-07-31
JP2014504229A (ja) 2014-02-20
CN103249581B (zh) 2016-12-07
PT2651676T (pt) 2018-04-30
KR20140019312A (ko) 2014-02-14
BR112013013260B1 (pt) 2020-07-14

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